PVC resin for shrink film
PVC resin for shrink film,
PVC resin for film production, PVC Resin SG7,
Features thermo plasticity, being insoluble into water, gasoline and alcohol, swelled or dissolved into ether, ketone, chlorinated aliphatic hydrocarbons, and aromatic hydrocarbon, high resistance to corrosion, and good dielectric property.
Specification
Type |
SG3 |
SG4 |
SG5 |
SG6 |
SG7 |
SG8 |
K value |
72-71 |
70-69 |
68-66 |
65-63 |
62-60 |
59-55 |
Viscosity, ml/g |
135-127 |
126-119 |
118-107 |
106-96 |
95-87 |
86-73 |
Average polymerization |
1350-1250 |
1250-1150 |
1100-1000 |
950-850 |
950-850 |
750-650 |
Number of impurity particle max |
30 |
30 |
30 |
30 |
40 |
40 |
Volatiles content % max |
0.4 |
0.4 |
0.4 |
0.4 |
0.4 |
0.4 |
Appearing density g/ml min |
0.42 |
0.42 |
0.42 |
0.45 |
0.45 |
0.45 |
Residual after sieve 0.25mm mesh max |
2 |
2 |
2 |
2 |
2 |
2 |
0.063mm min |
90 |
90 |
90 |
90 |
90 |
90 |
Number of grain/10000px2 max |
40 |
40 |
40 |
40 |
40 |
40 |
Plasticizer absorbency value of 100g resin |
25 |
22 |
19 |
16 |
14 |
14 |
Whiteness % min |
74 |
74 |
74 |
74 |
70 |
70 |
Residual chlorethylenecontent mg/kg max |
5 |
5 |
5 |
5 |
5 |
5 |
Ethylidene chloride mg/kg max |
150 |
150 |
150 |
150 |
150 |
150 |
Applications
*SG-1is used in producing high-grade electrical insulating material
*SG-2is used in producing electrical insulating material, common soft products andfilm
*SG-3 is used in producing electrical insulatingmaterials, agricultural film, daily-use plastic products,such
as Films, raincoat, industry packing,artificial leather, hose and shoe-making material, etc.
*SG-4 is used in producing membranelle for industrial andcivil use, tube and pipes
*SG-5 is used in producing transparent products sectionbar, hard tube and decorative materials,such
as Rigid plate, gramophone record, valueand welding rod, PVC pipes, PVC windows, doors ,etc
*SG-6 is used in producing clear foil, hard board andwelding rod
*SG-7, SG-8 is used in producing clear foil, hardinjection molding.Good hardness and high strength,mainlyused for tubes and pipes
Packaging
(1) Packing : 25kg net/pp bag, or kraft paper bag .
(2) Loading quantity : 680Bags/20′container, 17MT/20′container .
(3) Loading quantity : 1000Bags/40′container, 25MT/40′container .
PVC heat shrink film is made of PVC resin mixed with a dozen kinds of auxiliary materials after secondary blowing, which is characterized by good transparency, easy shrinkage, high strength, shrinkage rate can be freely adjusted according to user needs, strong operability. Its waterproof, flame retardant, relatively low cost and high yield characteristics, also by the production enterprises, sellers and use of enterprises.
At present, the annual demand of shrink film for beverage, cosmetics and pharmaceuticals is about 1 million tons, which shows the unprecedented market.
In China, the heat shrink film is mainly used in the following three fields.
In the field of beverage packaging, soft drink packaging, dairy packaging, purified water packaging markets required the total amount of heat shrink film soft drink bottle labeling more than 100,000 tons, and at an average annual growth rate of 18%.
In the field of pharmaceutical packaging, the thermal shrinkable film is replacing the carton, which greatly reduces the packaging cost of pharmaceutical enterprises. Pharmaceutical packaging mainly refers to the bottles, caps, boxes, films used for packaging drugs and medical machinery.
In the field of beer packaging, the output of beer in China exceeded 51.89 million tons last year, requiring more than 8.2 billion beer bottles. If 5% of beer bottles used thermoshrinkable film covers, the annual consumption would reach 50,000 tons, which is an amazing market potential.
At present, the amount of plastic packaging hot shrink film is hundreds of thousands of tons, with PVC, PS, PE and other materials, among which PVC is the hot shrink film with the highest market share at present.
The development of thermal shrinkage technology promotes the marketization of thermal shrinkage film, which makes PVC thermal shrinkage film cover the packaging field of electronic products, medical products and other industries, and promotes the development of product flexible packaging industry. At the same time, heat shrink labels, shrink caps are also developed.